﻿#region Legal

// Jimmy Zimmerman
// Team Mongoose
//
// END USER LICENSE AGREEMENT
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#endregion

using System;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace Mongoose.Games.BfgRoster.Tests
{
    [TestClass()]
    public class OrdinanceTests
    {
        [TestMethod()]
        public void ConstructorShouldRequireName()
        {
            var tests = new Action[]
                            {
                                () => new Ordinance(null, 1, 1),
                                () => new Ordinance(String.Empty, 1, 1),
                                () => new Ordinance(" ", 1, 1)
                            };

            foreach (var test in tests)
            {
                try
                {
                    test();
                    Assert.Fail("Exception should have been thrown");
                }
                catch (ArgumentNullException exception)
                {
                    Assert.AreEqual("The value cannot be null, empty, or only contain whitespace characters.\r\nParameter name: name", exception.Message);
                }
            }
        }

        [TestMethod()]
        public void ConstructorShouldRequireSpeedGreaterThan0()
        {
            const String Name = "A name";

            try
            {
                new Ordinance(Name, 0, 1);
                Assert.Fail("Exception should have been thrown");
            }
            catch (ArgumentOutOfRangeException exception)
            {
                Assert.AreEqual("The value must be at least 1. Actual value '0'\r\nParameter name: speed", exception.Message);
            }
        }


        [TestMethod()]
        public void ConstructorShouldRequireDeploymentsGreaterThan0()
        {
            const String Name = "A name";

            try
            {
                new Ordinance(Name, 1, 0);
                Assert.Fail("Exception should have been thrown");
            }
            catch (ArgumentOutOfRangeException exception)
            {
                Assert.AreEqual("The value must be at least 1. Actual value '0'\r\nParameter name: deploymentsCapable", exception.Message);
            }
        }

        [TestMethod()]
        public void ConstructorShouldTrimName()
        {
            const String Name = " A name ";

            var ordinance = new Ordinance(Name, 1, 1);

            Assert.AreEqual("A name", ordinance.Name);
        }

        [TestMethod()]
        public void ConstructorShouldSetPropertiesToExpectedValues()
        {
            const String Name = "A name";

            var ordinance = new Ordinance(Name, 1, 2);
            Assert.AreEqual(Name, ordinance.Name);
            Assert.AreEqual(1, ordinance.Speed);
            Assert.AreEqual(2, ordinance.DeploymentsCapable);
            Assert.IsFalse(ordinance.IsLocked);
        }

        [TestMethod()]
        public void NamePropertyShouldRequireValue()
        {
            const String Name = "A name";
            var ordinance = new Ordinance(Name, 1, 2);

            var tests = new Action[]
                            {
                                () => ordinance.Name = null,
                                () => ordinance.Name = String.Empty,
                                () => ordinance.Name = " "
                            };

            foreach (var test in tests)
            {
                try
                {
                    test();
                    Assert.Fail("Exception should have been thrown");
                }
                catch (ArgumentNullException exception)
                {
                    Assert.AreEqual("The value cannot be null, empty, or only contain whitespace characters.\r\nParameter name: Name", exception.Message);
                }
            }
        }

        [TestMethod()]
        public void DeploymentsCapableShouldBeAtLeast1()
        {
            const String Name = "A name";
            var ordinance = new Ordinance(Name, 1, 2);

            try
            {
                ordinance.DeploymentsCapable = 0;
                Assert.Fail("Exception should have been thrown");
            }
            catch (ArgumentOutOfRangeException exception)
            {
                Assert.AreEqual("The value must be at least 1. Actual value '0'\r\nParameter name: DeploymentsCapable", exception.Message);
            }
        }

        [TestMethod()]
        public void SpeedShouldBeAtLeast1()
        {
            const String Name = "A name";
            var ordinance = new Ordinance(Name, 1, 2);

            try
            {
                ordinance.Speed = 0;
                Assert.Fail("Exception should have been thrown");
            }
            catch (ArgumentOutOfRangeException exception)
            {
                Assert.AreEqual("The value must be at least 1. Actual value '0'\r\nParameter name: Speed", exception.Message);
            }
        }

        [TestMethod()]
        public void CannotChangeLockedItem()
        {
            const String Name = "A name";
            var ordinance = new Ordinance(Name, 1, 2);

            Assert.IsFalse(ordinance.IsLocked); // Santity check
            ordinance.Lock();
            Assert.IsTrue(ordinance.IsLocked);

            var tests = new Action[]
                           {
                               () => ordinance.Name = " a new value",
                               () => ordinance.DeploymentsCapable = 100,
                               () => ordinance.Speed = 100
                           };

            foreach (var test in tests)
            {
                try
                {
                    test();
                    Assert.Fail("Exception should have been thrown");
                }
                catch (InvalidOperationException exception)
                {
                    Assert.AreEqual("The current ordinance instance is locked for modification of the weapon characteristics.", exception.Message);
                }
            }
        }

        [TestMethod()]
        public void ShouldBeAbleToSetProperties()
        {
            const String Name = "A name";
            var ordinance = new Ordinance(Name, 1, 2);

            ordinance.Name = "A new name";
            ordinance.Speed = 2;
            ordinance.DeploymentsCapable = 3;

            Assert.AreEqual("A new name", ordinance.Name);
            Assert.AreEqual(2, ordinance.Speed);
            Assert.AreEqual(3, ordinance.DeploymentsCapable);
        }
    }
}
